Modeling and Simulation of Pigging for a Gas Pipeline Using a Bypass Pig

Table 2

Simulations of steady speed of the bypass pig in the horizontal pipe using RSM.

Run number	Pipe diameter A: 0.3∼1 m	Gas pressure B: 20∼100 bar	Gas speed C: 5∼15 m/s	Bypass area D: 5∼20%	Friction force E: 0.3∼1.5 bar	Pig speed (m/s)
1	0.65	60	5	20	0.9	3.17
2	0.3	60	5	12.5	0.9	4.26
3	0.65	60	15	5	0.9	14.97
4	1	60	5	12.5	0.9	4.29
5	0.65	60	5	5	0.9	4.88
6	0.65	60	5	12.5	1.5	4.08
7	0.65	60	10	12.5	0.9	9.28
8	0.65	100	10	12.5	1.5	9.33
9	0.65	20	5	12.5	0.9	3.76
10	0.65	100	15	12.5	0.9	14.49
11	0.3	60	10	12.5	0.3	9.52
12	1	100	10	12.5	0.9	9.48
13	0.65	60	15	20	0.9	13.16
14	0.65	60	10	12.5	0.9	9.28
15	0.65	20	10	5	0.9	9.80
16	1	60	15	12.5	0.9	14.30
17	0.3	100	10	12.5	0.9	9.46
18	1	20	10	12.5	0.9	8.73
19	1	60	10	5	0.9	9.89
20	0.65	60	10	12.5	0.9	9.28
21	0.65	60	15	12.5	0.3	14.58
22	0.65	60	10	20	0.3	8.85
23	0.65	20	10	12.5	1.5	8.35
24	0.65	60	15	12.5	1.5	14.09
25	0.65	100	5	12.5	0.9	4.48
26	1	60	10	20	0.9	8.17
27	0.3	20	10	12.5	0.9	8.70
28	0.65	60	10	20	1.5	7.64
29	0.65	100	10	20	0.9	8.66
30	0.65	60	5	12.5	0.3	4.58
31	1	60	10	12.5	0.3	9.59
32	0.65	60	10	5	1.5	9.85
33	0.65	60	10	5	0.3	9.95
34	0.65	20	10	20	0.9	6.73
35	0.65	60	10	12.5	0.9	9.28
36	0.65	60	10	12.5	0.9	9.28
37	0.65	100	10	12.5	0.3	9.69
38	0.65	100	10	5	0.9	9.92
39	0.3	60	15	12.5	0.9	14.26
40	0.65	20	10	12.5	0.3	9.27
41	0.65	20	15	12.5	0.9	13.76
42	1	60	10	12.5	1.5	9.08
43	0.3	60	10	12.5	1.5	9.06
44	0.3	60	10	20	0.9	8.10
45	0.3	60	10	5	0.9	9.89